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2022-09-10 r/4786 fix(tvix/eval): fix doc comment syntax where applicableVincent Ambo10-110/+122
As pointed out by grfn on cl/6091 Change-Id: I28308577b7cf99dffb4a4fd3cc8783eb9ab4d0d6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6460 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-10 r/4785 feat(tvix/eval): conditionally use tracing/disassembling observersVincent Ambo1-7/+23
Gates the observes behind the envvars `TVIX_DUMP_BYTECODE` and `TVIX_TRACE_RUNTIME`. (hi grfn, yes, we should probably introduce CLI flags soon) Change-Id: I4fa194a84b04593d609b96b44471c3644fb30296 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6459 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-10 r/4784 feat(tvix/eval): optimise tail calls in emitted chunksVincent Ambo1-2/+20
When the last instruction in a chunk is OpCall, make it an OpTailCall instead. Change-Id: I2c80a06ee85e4abf545887b1a79b6d8b5e6123e9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6458 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-10 r/4783 feat(tvix/eval): implement OpTailCallVincent Ambo3-9/+50
If the last operation within a chunk is a function call, the call can be executed in the same call frame without increasing the depth of the call stack. To enable this, a new OpTailCall instruction (similar to OpCall) is introduced, but not yet emitted by the compiler. Change-Id: I9ffbd7da6d2d6a8ec7a724646435dc6ee89712f2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6457 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-09 r/4782 fix(tvix/eval): force value passed to builtins.toStringVincent Ambo2-4/+26
This introduces a macro to do the forcing, but this solution isn't very nice and also does not work in all cases yet. Change-Id: Icd18862ec47edb82c0efc3af5835a6cb6126f629 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6456 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4781 chore(tvix/eval): clean up a stale commentVincent Ambo1-4/+0
Change-Id: If1b02fe1c78398387ea98490e5b099f1ff1b4164 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6455 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4780 chore(tvix/eval): clean up remains of previous disassembler implVincent Ambo3-45/+3
Change-Id: Ib402ea23a58dc52ed0c5a97178cb5d0e53d69300 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6454 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4779 feat(tvix/eval): implement TracingObserver for runtime tracingVincent Ambo1-0/+54
This produces similar output to the previous tracing feature, but can redirect the output somewhere else. Change-Id: I9493c260f480904f3932cb74809b622c24d7be96 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6453 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4778 feat(tvix/eval): implement runtime tracing methods for ObserverVincent Ambo3-30/+44
These methods make it possible to trace the runtime execution of the VM through an observer. Change-Id: I90e26853ba2fe44748613e7f761ed5c1c5fc9ff7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6452 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4777 refactor(tvix/eval): move `disassemble_op` to the Chunk structureVincent Ambo3-29/+33
Change-Id: Ic6710c609ed647bfa47d673aaf22c4da96c0f319 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6451 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4776 chore(tvix/eval): export some symbols from the crateVincent Ambo1-1/+5
These are required for tvixbolt to work. This interface is definitely not stable yet, though. Change-Id: I4076498e8f42311de74ee4f33c93a3ee0c5f8d3a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6450 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4775 feat(tvix/eval): implement DisassemblingObserver for compilerVincent Ambo7-98/+111
This type implements an observer that is called whenever the compiler emits a chunk (after the toplevel, thunks, or lambdas) and prints the output of the disassembler to its internal writer. This replaces half of the uses of the `disassembler` feature, which has been removed from the Cargo configuration. Note that at this commit runtime tracing is not yet implemented as an observer. Change-Id: I7894ca1ba445761aba4ad51d98e4a7b6445f1aea Reviewed-on: https://cl.tvl.fyi/c/depot/+/6449 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4774 feat(tvix/eval): implement (compilation) observer traitVincent Ambo2-0/+37
This trait will enable library users of tvix-eval to observe internal happenings of the compilation and runtime processes. The initial methods of the observer will be called whenever the compiler emits a chunk. Change-Id: I668f6c2cfe3d6f4c1a1612c0f293831011768437 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6448 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4773 refactor(tvix/eval): index into Chunk with ConstantIdx/CodeIdxVincent Ambo2-8/+22
This is a step towards hiding the internal fields of thunk, and making the interface of the type more predictable. Part of the preparation for implementing observers. Change-Id: I1a88a96419c72eb9e2332b56a2dd94afa47e6f88 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6447 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-09 r/4772 chore(tvix/eval): gate REPL-only dependencies behind `repl` featureVincent Ambo1-1/+13
With this change, it becomes possible to compile tvix-eval to webassembly if the `repl` feature is disabled. Change-Id: Icc0a059964cd0bea2054110c682d50fc5c87ec01 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6446 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-09 r/4771 chore(tvix/eval): debug_assert that all jumps are patchedVincent Ambo1-0/+4
Suggestion from sterni in cl/6282 Change-Id: I1adbdda9ff74f55a2f72892ffa524808b305f403 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6445 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-08 r/4770 feat(tvix/eval): thunk binary operations and select expressionsVincent Ambo3-2/+22
With this, most cases of `fix` in attribute sets will work correctly. A simple test exercising both has been added. Change-Id: I70fd431177bb6e48ecb33a87518b050c4c3d1c09 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6437 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4769 fix(tvix/eval): hold thunk borrow as shortly as possibleVincent Ambo1-7/+6
At the point where control flow exits Thunk::force (which may be due to recursing), it is vital that there is no longer a borrow to the inner thunk representation, otherwise this can cause accidental infinite recursion (which will be detected, but cause failures on valid code). Change-Id: I2846f3142830ae3110a4f5d2299e9d7928634504 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6436 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4768 feat(tvix/eval): print lambda memory adresses in disassemblerVincent Ambo4-32/+30
This makes it easier to track exactly which lambda is which when inspecting e.g. the concrete representation of a thunk. At runtime all lambdas live in an Rc. To make this print the right address, the construction of these Rcs had to be moved up right to the point where the lambda is first emitted (and disassembled). Change-Id: I6070e6c8ac55f0bd697966c4e7c5565c20d19106 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6435 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4767 fix(tvix/eval): ensure disassembler prints continous lines correctlyVincent Ambo2-4/+12
There can be different spans on the same line, so the previous implementation would duplicate line numbers unnecessarily. Change-Id: I8d8db77177aee0d834a6ec3584641e1bd5f31c3e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6434 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4766 feat(tvix/eval): thunk function applicationsVincent Ambo1-1/+4
Change-Id: I18065ed234ec104ac74d0e1c2d0937c2d78ca7db Reviewed-on: https://cl.tvl.fyi/c/depot/+/6433 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4765 feat(tvix/eval): thunk creation of listsVincent Ambo1-1/+3
Change-Id: I84b68c5d002ec613d278315bbf49e9839f0fe8e8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6432 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4764 test(tvix/eval): add test for stack slot accounting edge-caseVincent Ambo2-0/+18
This was fixed by some of the previous commits around scopes. It's somewhat similar to a few other tests, but I had this one failing earlier and everything else succeeding, so it is useful to keep it around for sure. Change-Id: Ie6cf372b5c805daf992cd87aeb3dfe91542c381c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6431 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4763 fix(tvix/eval): address current clippy & grfn lintsVincent Ambo5-38/+32
Change-Id: I65c6feb9f817b5b367d37204a1f57acfe4100d97 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6430 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4762 fix(tvix/eval): consider local depth when deciding to deferVincent Ambo3-5/+19
Deferred local upvalues can *only* occur at the same depth as the thing that is closing over them, but there are various situations with scope nesting where the actual stack indexes of the local and the closer look like a deferred value is being accessed. To fix this, simply compare the depth as well. Change-Id: Ice77424cc87ab0a2c4f01379e68d4399a917b12b Reviewed-on: https://cl.tvl.fyi/c/depot/+/6429 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4761 chore(tvix/eval): remove accidentally duplicated testVincent Ambo2-3/+0
This is the same as `eval-okay-attrs-simple-inherit`. Change-Id: I23878accc6cd62c16ec96601239838a385d31306 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6428 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4760 refactor(tvix/eval): clean up logic in Compiler::end_scopeVincent Ambo1-5/+3
The condition here was extremely hard to read prior to this change. As the locals vector is now guaranteed to never be empty (there is always at least a phantom for the current chunk's root expression), the logic here can be simplified to just dropping tailing locals entries while their depth matches that of the scope being closed. Change-Id: I24973e23bc2ad25e62ece64ab4d8624e6e274c16 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6427 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4759 fix(tvix/eval): set up root stack slot in closures & thunksVincent Ambo1-4/+8
Similar to setting up a phantom slot when compiling the root value of a file, closures and thunks need to have a phantom stack slot for the root of the expression yielded by their thunk to make all accounting work correctly. The tricky thing here is that closures & thunks *escape* their inner lambda context (that's the point!), so the functions emitting them need to know both the *inner* slot (to resolve everything correctly while compiling the slot) and the *outer* slot (to correctly emit instructions for closing over upvalues). Change-Id: I62ac58e2f639c4b9e09cc702bdbfd2373e985d7f Reviewed-on: https://cl.tvl.fyi/c/depot/+/6426 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4758 fix(tvix/eval): only pop initialised locals when closing scopesVincent Ambo1-5/+10
This avoids emitting OpPop instructions for locals that only existed virtually (as uninitialised phantoms). Change-Id: I8105afcca80c3f7b7ef93ce5e2f0d08a93f4ad27 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6425 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4757 fix(tvix/eval): ensure that root stack slot actually existsVincent Ambo2-5/+3
Instead of using a sentinel LocalIdx which potentially points to a value in the locals stack that does not actually exist, set up an initial uninitialised phantom value representing the result of the root expression. Change-Id: I82ea774daab83168020a3850bed57d35ab25c7df Reviewed-on: https://cl.tvl.fyi/c/depot/+/6424 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4756 fix(tvix/eval): compare *stack* slots when deciding whether to deferVincent Ambo2-2/+3
When deciding whether an upvalue needs to have a deferred resolution step, the *stack* indexes should be compared - not the locals indexes. The results are almost always the same, but there are tricky situations where this can cause errors. It's difficult to reproduce these errors in isolation, as they depend on other scope behaviour, so this is one in a series of commits to address the combination of issues which will gain some tests at the end. Change-Id: Iaa400b8d9500af58f493ab10e4f95022f3b5dd21 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6423 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4755 fix(tvix/eval): propagate scope depth when nesting scopesVincent Ambo1-0/+1
Change-Id: Id441646db550f6195c2e247a0afbb5c9d91da8a0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6422 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4754 refactor(tvix/eval): refactor locals to use an enum for phantomsVincent Ambo2-22/+48
Instead of using sentinel values and an additional bool, this tracks the identifier of a local as an enum that is either a statically known name, or a phantom. To make this work correctly some more locals related logic has been encapsulated in the `scope` module, which is a good thing (that's the goal). Phantom values are now not initialised by default, but the only current call site of phantoms (`with` expression compilation) performs the initialisation right away. This commit changes no actual functionality right now, but paves the way for fixing an issue related to `let` bodies. Change-Id: I679f93a59a4daeacfe40f4012263cfb7bc05034e Reviewed-on: https://cl.tvl.fyi/c/depot/+/6421 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4753 refactor(tvix/eval): always pass slot to compiler methodsVincent Ambo2-33/+32
The slot is now always known (at the root of the file it is simply stack slot 0 once the scope drops back down to 0), so it does not need to be wrapped in an `Option` and accessed in cumbersome ways anymore. Change-Id: I46bf67a4cf5cb96e4874dffd0e3fb07c551d44f0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6420 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4752 refactor(tvix/eval): implement much clearer disassembler outputVincent Ambo2-26/+50
With this change the runtime trace contains much more exact information about the context of the computation (entering/exiting calls etc.) This is in large part due to moving the tracer to be a field on the VM itself, which enables consistent ordering of traces across the execution, and tracing an execution with its *input* instead of *output* stack. Change-Id: Ibe525e6e7d869756501e52bef1a441619ce7332c Reviewed-on: https://cl.tvl.fyi/c/depot/+/6419 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4751 chore(tvix/eval): print value when panicking on internalsVincent Ambo1-1/+3
This makes it much easier to figure out what happened while debugging this sort of thing. Change-Id: I2e0e8096709adc647d63c04f213c547c415e5f44 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6418 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4750 fix(tvix/eval): force argument of builtins.lengthVincent Ambo1-1/+4
Change-Id: Iaf94dfc7cb058f5c1c311066d92e01512e09cf71 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6417 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4749 fix(tvix/eval): don't panic when printing a black holeVincent Ambo1-2/+6
This could occur when the disassembler is enabled and tracing the runtime while a thunk is being evaluated, as it would not be possible for the *tracer* to borrow the thunk at this exact moment. However, we know that if the borrowing fails here we are dealing with a not-fully evaluated thunk (blackhole), which should just print the internal representation. Change-Id: I4bdb4f17818d55795368e3d28842048f488f0a91 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6416 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4748 refactor(tvix/eval): return call frame result from VM::callVincent Ambo3-14/+38
Previously, "calling" (setting up the VM run loop for executing a call frame) and "running" (running this loop to completion) were separate operations. This was basically an attempt to avoid nesting `VM::run` invocations. However, doing things this way introduced some tricky bugs for exiting out of the call frames of thunks vs. builtins & closures. For now, we unify the two operations and always return the value to the caller directly. For now this makes calls a little less effective, but it gives us a chance to nail down some other strange behaviours and then re-optimise this afterwards. To make sure we tackle this again further down I've added it to the list of known possible optimisations. Change-Id: I96828ab6a628136e0bac1bf03555faa4e6b74ece Reviewed-on: https://cl.tvl.fyi/c/depot/+/6415 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4747 feat(tvix/eval): thread codemap through to disassemblerVincent Ambo4-5/+47
If the disassembler feature is enabled, make sure that an Rc of the codemap is available through the chunk. Change-Id: I700f27ab665a704f73457b19bd2d7efc93828a16 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6414 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4746 docs(tvix/eval): add notes for builtins access optimisationVincent Ambo1-0/+10
Change-Id: Iadbfbe2864ae42fe5492ef3ede0925baee4872b2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6413 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4745 refactor(tvix/eval): add macros for generating Value castersVincent Ambo3-76/+56
The casting methods of `Value` are pretty verbose, and actually incorrect before this commit as they did not account for inner thunk values. To address this, we first attempt to make them correct by introducing a standard macro to generate them and traverse the inner thunk(s) if necessary. This is likely to be a performance hit as it will now involve more cloning of values. We can do multiple things to alleviate this, but should do some measurements first. Change-Id: If315d6e2afe7b69db727df535bc6cbfb89a691aa Reviewed-on: https://cl.tvl.fyi/c/depot/+/6412 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4744 refactor(tvix/eval): pass a VM reference to builtinsVincent Ambo3-24/+34
This makes it possible for builtins to force values on their own, without the VM having to apply a strictness mask to the arguments first. Change-Id: Ib49a94e56ca2a8d515c39647381ab55a727766e3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6411 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4743 fix(tvix/eval): inherit scope poisoning data in nested contextsVincent Ambo4-4/+36
Scope poisoning must be inherited across lambda context boundaries, e.g. if an outer scope has a poisoned `null`, any lambdas defined on the same level must reference that poisoned identifier correctly. Change-Id: I1aac64e1c048a6f3bacadb6d78ed295fa439e8b4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6410 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4742 fix(tvix/eval): thread thunk forcing errors through correctlyVincent Ambo2-3/+7
With this, if an error occurs while forcing a thunk (which is very likely) it is threaded through to the top by wrapping it in the ErrorKind::ThunkForce variant. We could use this to generate "stacktrace-like" error output if we wanted, or simply jump through and discard everything except the innermost error. Change-Id: I3c1c8708c2f73ae062815adf490ce935b1979da8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6409 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-08 r/4741 feat(tvix/eval): ensure all errors always carry a spanVincent Ambo9-141/+149
Previously error spans were optional because the information about code spans was not available at runtime. Now that this information has been added, the error type will always carry a span. This change is very invasive all throughout the codebase. This is due to the fact that many functions that are called *by* the VM expected to return `EvalResult`, but this no longer works as the span information is not available to those functions - only to the VM itself. To work around this the majority of these functions have been changed to return `Result<T, ErrorKind>` instead and an accompanying macro in the VM constructs the "real" error. Note that this implementatino currently has a bug where errors occuring within thunks will yield the location at which the thunk was forced, not the location at which the error occured within the code. This will be fixed soon, but the commit is large enough as is. Change-Id: Ib1ecb81a4d09d464a95ea7ea9e589f3bd08d5202 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6408 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
2022-09-07 r/4740 feat(tvix/eval): Support builtins.lengthWilliam Carroll5-0/+24
Get the length of a list Change-Id: I41d91e96d833269541a1b3c23b7cc879f96d1e5a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6407 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4739 feat(tvix/eval): Support builtins.{mul,div}William Carroll5-0/+28
Multiplication and division :) Change-Id: I79e76f3b55b7e9b8d1eb09b3d9741140b4d75742 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6406 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4738 feat(tvix/eval): Support builtins.{add,sub}William Carroll6-0/+29
First pass at supporting `builtins` for tvix. The following tests appear to be WAI: ```shell $ cd tvix/eval $ cargo build $ cargo test ``` Change-Id: I27cce23d503b17a886d1109e285e8b4be4264977 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6405 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2022-09-07 r/4737 refactor(tvix/eval): store spans instead of nodes in Warning/ErrorVincent Ambo5-89/+91
Another step towards being able to report accurate errors. The codemap spans contain strictly more accessible information, as they now retain information about which input file something came from. This required some shuffling around in the compiler to thread all the right information to the right places. Change-Id: I18ccfb20f07b0c33e1c4f51ca00cd09f7b2d19c6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6404 Reviewed-by: sterni <sternenseemann@systemli.org> Tested-by: BuildkiteCI
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